Question
The average score of 'x' boys is (x + 5), and the average score of 30 girls is (3x - 10). If the combined average score of all students is 60, then find the number of boys.
More Average Questions
- The average number of books on Biology, Chemistry, and Physics in a book shop is 300. Biology books are 150 more than the average number of Chemistry and P...
- Ravi scored 95, 88, 102, 110, 76 and 91 marks in History, Chemistry, Biology, Mathematics, English and Computer respectively. What is the average of his ma...
- The average of two consecutive even numbers is 85. If the smaller number is increased by 20% and the larger number is decreased by 20%, then find the diffe...
- A man can row 32 km upstream and 60 km downstream in 8 hours. He can also row 40 km upstream and 48 km downstream in 6 hours. Find the speed of the man in ...
- A writer completed an average of 120 pages per week for the first 10 weeks. In the next 5 weeks, he completed ‘x’ pages per week, so that his overall avera...
- In a town, the average rainfall for the first four days of a week was 105 cm, while the average for the last four days was 112 cm. If the weekly average ra...
- In an office, there are 52 employees with an average weight of 38 kg. When the office manager's weight is included, the average weight of everyone in the o...
- The average price of two mobile phones, namely 'P' and 'Q' is Rs. 15,600 whereas the average price of phones 'Q' and 'R' is Rs. 16,800. If the average pric...
- Average marks scored by Vineet in five subjects are 75. The average marks scored by him (excluding his highest and lowest marks) are 60 and lowest marks sc...
- 2040, 600, 240, 150, ?, 121.875
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
